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Unread 06-17-2013, 12:23 PM   #1
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Join Date: May 2013
Location: Houston, tx
Posts: 2
Loud Vibrating Noise from passenger side under hood

I just spent a LOT of money to replace my evaporator/heater core. Right after I picked it up from mechanic, it began making a horrible loud vibrational kind of noise. The a/c cools great when idling and there's no noise, but when driven for over 15 minutes at 65 MPH, the cold air stops blowing. I've been to two different mechanics and they can't figure out what's causing the noise (as it's quiet while idling) NOR the reason it quits blowing cold air when driven over 65 MPH. Can someone please help?! Could it be the fan? The compressor clutch? Or both?

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Unread 06-17-2013, 03:28 PM   #2
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2006 WK 
Join Date: Mar 2009
Location: Sheffield Lake, OH
Posts: 342
Sounds like the compressor.. Did they fill it with air compressor oil?.. If it didnt make the noise before, make them fix it..
2006 Grand Cherokee Laredo 3.7
2007 Liberty Sport 3.7
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